In short

Polish personal pronouns (ja, ty, on, ona…) change their form for case just like nouns do, so he can appear as on, jego, jemu, go, mu, nim. On top of that, several of them come in two shapes: a heavy stressed form (jego, jemu, ciebie, tobie, mnie) and a light enclitic short form (go, mu, cię, ci, mi). Picking the right shape is not optional style - the short forms are banned from certain positions, and using the wrong one sounds distinctly foreign. This lesson gives you the full pronoun paradigm and the simple rules for when to use go versus jego.

The rule

A personal pronoun stands in for a noun and therefore takes whatever case the sentence needs: nominative for the subject, accusative for the direct object, dative for the recipient, and so on. So the single English word him corresponds to jego / go (accusative), jemu / mu (dative), nim (instrumental/locative), depending on its job in the clause.

Object clitics: go, mu, ją, jej, cię, mi, mnie

The most frequent pronouns in speech are the object ones - the words for him, her, it, you, me as the target of a verb. Several of them have a special enclitic (unstressed, “leaning”) short form used in the normal, neutral middle of a sentence:

• go = him / it (accusative or genitive) - Znam go. (I know him.)
• mu = to him / to it (dative) - Daj mu klucze. (Give him the keys.)
• cię = you (accusative/genitive, singular) - Kocham cię. (I love you.)
• ci = to you (dative, singular) - Pomogę ci. (I will help you.)
• mi = to me (dative) - Powiedz mi. (Tell me.)

Three of the listed forms have no shorter partner in the accusative/genitive - there they are simply the ordinary object form:

• ją = her / it fem. (accusative) - Widzę ją. (I see her.) There is no separate short form; ją is used everywhere except after a preposition (then nią).
• jej = her / to her (genitive and dative) - Szukam jej. (I am looking for her.) / Daj jej to. (Give her that.)
• mnie = me (accusative/genitive, and the stressed dative) - Nie ma mnie w domu. (I am not at home.) First-person singular has only mnie for accusative/genitive; the short partner exists only in the dative, where it is mi.

Stressed vs. enclitic pronoun forms

Where a pronoun has both a long and a short form, the choice is governed by three positions. Use the stressed (long) form in exactly these cases:

1. At the start of a clause. A short clitic can never open a sentence. Jego nie znam. (Him I do not know.) - not Go nie znam.
2. After a preposition. Any preposition forces the long form, and for the 3rd person that long form starts with n-: dla niego (for him), do niej (to her), na nich (on them). Never dla go.
3. Under contrast or emphasis, including a one-word answer. Daj to jemu, nie jej. (Give it to HIM, not her.) - Komu? - Tobie. (To whom? - To you.)

Everywhere else - the neutral, unstressed body of the sentence - use the enclitic (short) form: Znam go, powiem ci, daj mu. The short form is the default; the long form is the marked, “pointed-at” choice.

Forms & patterns

Singular personal pronouns

Bold = the enclitic short form; the plain form to its left is the stressed one.

Plural personal pronouns

Plurals have no separate short forms - each cell is a single, ordinary word.

After a preposition: the n- forms

Every 3rd-person pronoun swaps its bare form for one beginning with n- as soon as a preposition precedes it. This is automatic and has no exceptions.

The 1st- and 2nd-person forms do not add n-: do mnie (to me), o tobie (about you), dla nas (for us).

Stressed vs. enclitic: where the pair exists

Only five slots have a genuine long/short pair; memorize this short list.

Everything not on this list (ją, jej, nas, was, nam, wam, ich, im…) has a single form used in every neutral position.

Examples

Common mistakes

• Znam jego (neutral) -> Znam go - in the plain middle of a sentence the short clitic go is required; jego only for emphasis or contrast.
• Daj mnie książkę -> Daj mi książkę - the neutral dative is the short mi; mnie is the stressed form.
• Go nie widzę / Mu powiem -> Jego nie widzę / Jemu powiem - a short clitic can never open a clause; use the long form at the start.
• dla go, do jej -> dla niego, do niej - after any preposition the 3rd person takes the n- form.
• czekam na jego -> czekam na niego - the preposition na forces niego, not bare jego.
• Kocham ciebie (as neutral “I love you”) -> Kocham cię - use the short cię unless you are contrasting (“I love YOU, not her”).
• z jej, o ją -> z nią, o niej - the feminine pronoun also switches to n- after a preposition.

Tips

• Think “short = weak”: go, mu, cię, ci, mi cannot stand at the start of a clause, cannot follow a preposition, cannot be stressed, and cannot stand alone as an answer. In all four of those spots, reach for the long form.
• One reflex covers the biggest error source: preposition + 3rd person = n-. do niego, dla niej, z nimi, o nich - drill these until they are automatic.
• The feminine ją and jej have no short/long split, so you only have to decide the n- question (bare ją/jej vs. prepositional nią/niej).
• Default to the short form and only “promote” to the long form when the sentence starts with the pronoun, a preposition sits in front, or you are pointing a finger (“to HIM”).
• Word-order note: short clitics like to huddle next to the verb - right after it in a short sentence (Znam go.), or just before it when another word comes first (Dobrze go znam.); the finer placement rules come in Word order and clitics.